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News & Tips From TLC Landscaping

How We Use Fiesta® to Control Unwanted Weeds

At TLC Landscaping, one of the more powerful tools we have at our disposal is Fiesta® Lawn Herbicide. As a government licenced applicator, we regularly use Fiesta® to control and eliminate unsightly weeds on our client’s properties. 

Using a specially formulated iron chelate solution, Fiesta® Lawn Herbicide is a low-risk herbicide that selectively targets broadleaf weeds. Fiesta® is a fast-acting solution with results being noticeable as early as the first day and can even be applied in cool weather.

The difference between a treated and untreated lawn is quite dramatic – you’ve likely seen this around London – a wide contrast between lush green lawns and those otherwise spotted with dandelions and invasive weeds.

However, we recognize that using a herbicide can come with public scrutiny and concerns for the safety of our plants, pets, and loved ones on a treated lawn. We take these concerns very seriously and that is why we choose to use Fiesta® over comparable products. 

Is it Safe to Use?

Unlike many other herbicides, Fiesta® is completely odourless and doesn’t require extensive precautions like staying off the lawn for a long period of time. 

This is because Fiesta® is quickly absorbed by the plant tissue and transported down to the root. It works through iron toxicity; since broadleaf weeds absorb and uptake iron differently than turfgrass, the weeds are controlled while the grass is not affected.

The unique properties of Fiesta® make it is safe for wildlife and pets in addition to insects like the vitally important honey-bee.

An excerpt from Health Canada’s registration decision:

“For an assessment of bees, a screening level EEC for acute oral or contact exposure to residues is 62.4 kg FeHEDTA/ha. For bees, the LD50 values in µg/bee were converted to the equivalent rates in kg/ha by multiplying with 1.12. The converted LD50 value was 93.7 kg FeHEDTA/ha. The screening level RQ value was <0.66; therefore, the negligible risk to honey bees is expected.”

“I thought pesticides weren’t allowed in London?”

In Ontario, any product applied to get rid of a specific pest or organism, regardless of how safe or benign it is, is legally classified as a pesticide and must be regulated through the Ministry of the Environment, Conservation and Parks. TLC landscaping is licensed through the Ministry to legally apply the products and all of our technicians are trained and certified.

As a safe alternative, Fiesta® can be used on more sensitive lawns such as parks, golf courses, cemeteries, and playgrounds and is ideal for lawn care where pesticide bans exist. 

Fiesta® best controls these common broadleaf weeds:

  • Black medic (Medicago lupulina)
  • Broadleaf plantain (Plantago major)
  • Bull thistle (Cirsium vulgare)
  • Canada thistle (Cirsium arvense)
  • Common chickweed (Stellaria media)
  • Creeping buttercup (Ranunculus repens)
  • Dandelion (Taraxicum officinale)
  • Dovefoot geranium (Geranium molle)
  • English daisy (Bellis perennis)
  • False dandelion (Hypochoeris radicata)
  • Healall (Prunella vulgaris)
  • Moss, liverworts, algae and lichens
  • Narrow-leaved plantain (Plantago lanceolata)
  • Persian speedwell (Veronica persica)
  • Shepherd’s-purse (Capsella bursa-pastoris)
  • Silverweed cinquefoil (Potentilla anserina)
  • Slender speedwell (Veronica filiformis)
  • White clover (Trifolium repens)
  • Wild chamomile (Matricaria chamomilla)

We are happy to be able to offer our clients a safe and responsible option for tackling unsightly weeds around their properties. Contact your Client Care Manager at TLC to discover how a little Fiesta® can go a long way.

Topics: Condo Grounds Care, Commercial Grounds Care, Fiesta